/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.opencfg.lang;

import java.util.Collection;
import java.util.Map;

import org.apache.commons.collections.CollectionUtils;
import org.apache.commons.collections.MapUtils;
import org.apache.commons.lang.StringUtils;

/**
 * <p>
 * AssertUtils
 * </p>
 * 
 * @author reymondtu@gmail.com
 * @version $Id: AssertUtils.java 2011-9-28 $
 */
public final class AssertUtils {

	public static void isTrue(final boolean expression, final String message) {
		if (!expression)
			throw new IllegalArgumentException(message);
	}

	public static void isNull(final Object object, final String message) {
		if (object != null)
			throw new IllegalArgumentException(message);
	}

	public static void notNull(final Object object, final String message) {
		if (object == null)
			throw new IllegalArgumentException(message);
	}

	public static void isEmpty(final String str, final String message) {
		if (StringUtils.isEmpty(str))
			throw new IllegalArgumentException(message);
	}

	public static void isEmpty(final Collection<?> collection,
			final String message) {
		if (CollectionUtils.isEmpty(collection))
			throw new IllegalArgumentException(message);
	}

	public static void isNotEmpty(final String str, final String message) {
		if (StringUtils.isNotEmpty(str))
			throw new IllegalArgumentException(message);
	}

	public static void isNotEmpty(final Collection<?> collection,
			final String message) {
		if (CollectionUtils.isNotEmpty(collection))
			throw new IllegalArgumentException(message);
	}

	public static void isEmpty(final Map<?, ?> map, final String message) {
		if (MapUtils.isEmpty(map))
			throw new IllegalArgumentException(message);
	}

	public static void isNotEmpty(final Map<?, ?> map, final String message) {
		if (MapUtils.isNotEmpty(map))
			throw new IllegalArgumentException(message);
	}

}
